Tool · Weight loss
Retatrutide Weight Loss Calculator
Estimate your weight loss timeline on Retatrutide using your personal stats and Phase 2 trial data from Jastreboff et al., NEJM 2023. Individual results vary; this tool is educational, not medical advice.
Mean trial loss
24.2%
Trial duration
48 wk
Max dose
12 mg/wk
Mechanism
GIP/GLP-1/GCG
§ 01
Personal stats
Inputs
Units
35 years
18 years80 years
2000 kcal
1000 kcal4000 kcal
90 kg
50 kg200 kg
75 kg
40 kg195 kg
175 cm
140 cm220 cm
§ 02
Output
Results
Enter your stats above and run the calculation to see your projection.
§ 03
Recommendation
Protocol
Run the calculation to get a recommended protocol.
§ 04
Methodology
Sources & assumptions
- Trial reference:Jastreboff AM, et al. “Triple-Hormone-Receptor Agonist Retatrutide for Obesity.” N Engl J Med. 2023;389(6):514-526. Phase 2 trial showed 24.2% mean weight loss at 12mg over 48 weeks.
- BMR equation: Mifflin-St Jeor (10·kg + 6.25·cm − 5·age + 5/−161 for male/female).
- Weekly loss model: 0.5% body weight base rate × activity bonus + calorie deficit (7700 kcal/kg).
- Individual results vary. Educational use only — does not constitute medical advice.
§ 05
Continue reading